show isis logical-interface

Display IS-IS logical interfaces.

Syntax

Command Parameters

name
Displays IS-IS logical interface name.

Default

None.

Command Mode

User EXEC

Command Output

The show isis logical-interface command displays the following information:

Output field

Description

IFIDX

Displays an index value for this logical interface.

NAME

Displays the administratively assigned name of this logical interface.

ENCAP TYPE

Displays whether the encapsulation type for the logical interface is Layer 2 (L2–P2P-VID) or Layer 3 (IP).

L2_INFO

PORT/MLT

Displays the port or MLT that the logical interface is connected to in an Layer 2 network.

VIDS (PRIMARY)

Displays the list of VLANs that are associated with this Layer 2 logical interface.

TUNNEL DEST-IP

Displays the destination IP address for the logical interface.

L3_TUNNEL_NEXT_HOP_INFO

PORT/MLT

Displays the outgoing interface (port or MLT) for VXLAN traffic.

L3_TUNNEL_NEXT_HOP_INFO

VLAN

Displays the outgoing VLAN interface for VXLAN traffic.

L3_TUNNEL_NEXT_HOP_INFO

VRF

Displays the name of the VRF that this Layer 3 logical interface is configured on.

BFD STATUS

Displays the status of BFD on this logical interface. The status can be enabled or disabled.

TUNNEL

SRC-IP

Displays the source IP address for a Fabric Extend tunnel.

Examples

Example of a Layer 2 Core (FE-VID):

Switch:1>show isis logical-interface
=======================================================================================================================
                                                               ISIS Logical Interfaces
=======================================================================================================================
IFIDX    NAME  ENCAP        L2_INFO                    TUNNEL     L3_TUNNEL_NEXT_HOP_INFO   BFD        TUNNEL
               TYPE         PORT/MLT   VIDS(PRIMARY)   DEST-IP    PORT/MLT   VLAN      VRF  STATUS     SRC-IP
-----------------------------------------------------------------------------------------------------------------------

1      --     L2-P2P-VID    Port2/40  101,201(101)    --           --        --     --      disabled   --
2      --     L2-P2P-VID    Port1/3   102,202(102)    --           --        --     --      disabled   --
-----------------------------------------------------------------------------------------------------------------------
 2 out of 2 Total Num of Logical ISIS interfaces 
-----------------------------------------------------------------------------------------------------------------------

Example of a Layer 3 Core (FE-IP):

Switch:1>show isis logical-interface
========================================================================================================
                                                               ISIS Logical Interfaces
========================================================================================================
IFIDX NAME      ENCAP  L2_INFO                   TUNNEL     L3_TUNNEL_NEXT_HOP_INFO   BFD        TUNNEL
                TYPE   PORT/MLT  VIDS(PRIMARY)   DEST-IP    PORT/MLT   VLAN      VRF  STATUS     SRC-IP
--------------------------------------------------------------------------------------------------------
1    SPBoIP_T1  IP     --       --             50.50.50.9   Port1/25  500       vrf23 disabled  50.50.50.11
2    SPBoIP_T2  IP     --       --             65.65.65.9   MLT10     2         vrf24 disabled  60.60.60.11
--------------------------------------------------------------------------------------------------------
2 out of 2 Total Num of Logical ISIS interfaces 
--------------------------------------------------------------------------------------------------------

The command show isis logical-interface truncates the IS-IS logical interface name to the first 16 characters. To view the entire name (up to a maximum of 64 characters), use the command show isis logical-interface name.

Switch:1>show isis logical-interface name
========================================================================================
 						ISIS Logical Interface name
========================================================================================
ID     NAME   
              
----------------------------------------------------------------------------------------
1      SPBoIP_T1 
2      SPBoIP_T2 
3      SPBoIP_4K5
6      This_Is_A_50_Character_ISIS_Logical_Interface_Name 
----------------------------------------------------------------------------------------
 4 out of 4 Total Num of Logical ISIS interfaces 
----------------------------------------------------------------------------------------